Solve the system using elimination.

y – x = 13
7y + x = 11

(–10, 16)

(–10, 3)

(3, 16)

(–3, –10)

(-10, 3)

Step-by-step explanation:

Y - X = 13

7Y + X = 11

(Y+7Y) + (-X+X) = 13+11

8Y = 24

Y = 3

Solving for X:

Y - X = 13

Substitute Y=3

3 - X = 13

-X = 13-3

-X = 10

Multiply by - 1,

X = - 10

(-10, 3)

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!